The Acanthostrea is usually referred to as “acan coral” its a large polyp stony coral that is incredibly hardy and fast growing. It come’s in various shades of red, blue, green, orange, brown, teal, pink, & grey. They are for intermediate to advanced reefer’s. They require moderate lighting with moderate water flow. Too much light will cause bleaching & too much flow will cause its heads to close. They do best at the bottom or corners of tanks. They are a semi aggressive coral that will sting other corals.